Explain the interdependence of photosynthesis and cellular respiration. discuss the effect on organisms that perform cellular respiration and the resulting change in relative concentrations of gasses in the atmosphere if many photosynthetic organisms are removed from an ecosystem.
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Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water.

Explanation:For example, both processes synthesize and use ATP, the energy currency.

The interdependence of photosynthesis and cellular respiration is that photosynthesis utilizes the carbon dioxide that is produced by cellular respiration.

Photosynthesis also releases oxygen into the environment which is used in the process of cellular respiration.

If a number of photosynthetic organism is removed from the environment then the concentration of carbon dioxide in the environment will increase as there will be no organism that will utilize the carbon dioxide present in the environment.

geologic time scale (for gradpoint) =)